Restatement of Consolidated Financial Statements (Details) (USD $)	3 Months Ended																							12 Months Ended
	Dec. 31, 2012	Sep. 30, 2012		Jun. 30, 2012		Mar. 31, 2012		Dec. 31, 2011		Sep. 30, 2011		Jun. 30, 2011		Mar. 31, 2011		Dec. 31, 2010		Sep. 30, 2010		Jun. 30, 2010		Mar. 31, 2010		Dec. 31, 2012	Dec. 31, 2011		Dec. 31, 2010		Dec. 31, 2009
Impact of correction for the restatement, cumulative	$ 980,000																							$ 980,000
Impact of correction for the restatement, cumulative (per share)	$ 0.09																							$ 0.09
Consolidated Statement of Financial Condition [Abstract]
Accrued interest receivable and other assets	17,426,000							21,892,000	[1]							25,142,000	[1]							17,426,000	21,892,000	[1]	25,142,000	[1]
Total assets	852,118,000							901,163,000	[1]							962,745,000	[1]							852,118,000	901,163,000	[1]	962,745,000	[1]
Retained earnings	33,895,000							31,677,000	[1]							31,845,000	[1]							33,895,000	31,677,000	[1]	31,845,000	[1]
Total stockholders' equity	108,996,000							106,465,000	[1]							106,302,000	[1]							108,996,000	106,465,000	[1]	106,302,000	[1]	106,231,000
Total liabilities and stockholders' equity	852,118,000							901,163,000	[1]							962,745,000	[1]							852,118,000	901,163,000	[1]	962,745,000	[1]
Consolidated Statement of Operations [Abstract]
FDIC assessments and regulatory expense																								1,444,000	1,670,000	[1]	1,948,000	[1]
Total non-interest expenses	5,815,000	5,961,000	[1]	5,732,000	[1]	6,139,000	[1]	5,605,000	[1]	5,800,000	[1]	6,019,000	[1]	6,626,000	[1]	5,893,000	[1]	5,947,000	[1]	6,466,000	[1]	6,368,000	[1]	23,647,000	24,050,000	[1]	24,674,000	[1]
Income tax provision	914,000	481,000	[1]	840,000	[1]	423,000	[1]	860,000	[1]	467,000	[1]	(495,000)	[1]	378,000	[1]	529,000	[1]	418,000	[1]	488,000	[1]	(263,000)	[1]	2,658,000	1,210,000	[1]	1,172,000	[1]
Net income	1,274,000	674,000	[1]	1,203,000	[1]	577,000	[1]	1,166,000	[1]	646,000	[1]	(756,000)	[1]	496,000	[1]	660,000	[1]	536,000	[1]	633,000	[1]	(470,000)	[1]	3,728,000	1,552,000	[1]	1,359,000	[1]
Loss to common stockholders																								2,218,000	(168,000)	[1]	(361,000)	[1]
Net income (loss) per common share:
Basic (in dollars per share)	$ 0.09	$ 0.03	[1]	$ 0.08	[1]	$ 0.02	[1]	$ 0.07	[1]	$ 0.02	[1]	$ (0.12)	[1]	$ 0.01	[1]	$ 0.02	[1]	$ 0.02	[1]	$ 0.02	[1]	$ (0.09)	[1]	$ 0.22	$ (0.02)	[1]	$ (0.04)	[1]
Diluted (in dollars per share)	$ 0.09	$ 0.03	[1]	$ 0.08	[1]	$ 0.02	[1]	$ 0.07	[1]	$ 0.02	[1]	$ (0.12)	[1]	$ 0.01	[1]	$ 0.02	[1]	$ 0.02	[1]	$ 0.02	[1]	$ (0.09)	[1]	$ 0.22	$ (0.02)	[1]	$ (0.04)	[1]
Consolidated Statement of Cash Flows [Abstract]
Net Income	1,274,000	674,000	[1]	1,203,000	[1]	577,000	[1]	1,166,000	[1]	646,000	[1]	(756,000)	[1]	496,000	[1]	660,000	[1]	536,000	[1]	633,000	[1]	(470,000)	[1]	3,728,000	1,552,000	[1]	1,359,000	[1]
Deferred income tax expense																								2,206,000	1,159,000	[1]	2,160,000	[1]
Accrued interest receivable and other assets																								2,261,000	2,091,000	[1]	2,688,000	[1]
As Reported [Member]
Consolidated Statement of Financial Condition [Abstract]
Accrued interest receivable and other assets								21,357,000								24,940,000									21,357,000		24,940,000
Total assets								900,628,000								962,543,000									900,628,000		962,543,000
Retained earnings								31,142,000								31,643,000									31,142,000		31,643,000
Total stockholders' equity								105,930,000								106,100,000									105,930,000		106,100,000
Total liabilities and stockholders' equity								900,628,000								962,543,000									900,628,000		962,543,000
Consolidated Statement of Operations [Abstract]
FDIC assessments and regulatory expense																									2,231,000		2,282,000
Total non-interest expenses																									24,611,000		25,008,000
Income tax provision																									982,000		1,040,000
Net income		558,000		1,097,000		472,000		1,067,000		551,000		(846,000)		447,000		607,000		485,000		593,000		(528,000)			1,219,000		1,157,000
Loss to common stockholders																									(501,000)		(563,000)
Net income (loss) per common share:
Basic (in dollars per share)																									$ (0.05)		$ (0.06)
Diluted (in dollars per share)																									$ (0.05)		$ (0.06)
Consolidated Statement of Cash Flows [Abstract]
Net Income		558,000		1,097,000		472,000		1,067,000		551,000		(846,000)		447,000		607,000		485,000		593,000		(528,000)			1,219,000		1,157,000
Deferred income tax expense																									931,000		2,160,000
Accrued interest receivable and other assets																									2,652,000		2,890,000
Adjustment [Member]
Consolidated Statement of Financial Condition [Abstract]
Accrued interest receivable and other assets								535,000								202,000									535,000		202,000
Total assets								535,000								202,000									535,000		202,000
Retained earnings								535,000								202,000									535,000		202,000
Total stockholders' equity								535,000								202,000									535,000		202,000
Total liabilities and stockholders' equity								535,000								202,000									535,000		202,000
Consolidated Statement of Operations [Abstract]
FDIC assessments and regulatory expense																									(561,000)		(334,000)
Total non-interest expenses																									(561,000)		(334,000)
Income tax provision																									228,000		132,000
Net income																									333,000		202,000
Loss to common stockholders																									333,000		202,000
Net income (loss) per common share:
Basic (in dollars per share)																									$ 0.03		$ 0.02
Diluted (in dollars per share)																									$ 0.03		$ 0.02
Consolidated Statement of Cash Flows [Abstract]
Net Income																									333,000		202,000
Deferred income tax expense																									228,000		0
Accrued interest receivable and other assets																									$ (561,000)		$ (202,000)

[1] Restated